I have 2 daughters aged 2 and 4. (Also two older DC's but they have a different dad and not really relevant to this situation) Both girls diagnosed with ASD. I split with their dad almost two years ago due to him lying, drinking, stealing and cheating. Since then I have been a SAHM. In September I managed to find a job that is one weekend day a week (12 hour shift) which suited me perfectly as I couldn't work weekdays. The DC's are in 4 different schools so between school runs, appointments for the smaller two etc it just wouldn't be possible logistically. I spoke to ex about the job and asked him would he mind DDS the day I work instead of paying maintenance, he has never paid any since he left. He agreed. I started the job in September. Two weeks later he said he wanted to be paid £30 for the days he minded them. I earn £58 for the day by the time my benefits are adjusted. I really wanted to keep the job, it's in an area I worked hard to get a degree in and I don't want to be out of work for any longer than I have to. So I agreed. This weekend he wanted £50! I refused and gave him £30 but I'm getting really fed up now. I hate the fact I'm leaving my babies all day just to hand him most of my wages. Realistically I couldn't afford to pay a childminder, I'd be paying more than I'm earning. But it sickens me that on top of not paying maintenance he's also making me pay him. He says I'd have to pay someone anyway so it may as well be him.
He doesn't work himself and honestly has never even bought a nappy for the girls since he left. Not even a Christmas present. AIBU in thinking he's totally taking advantage of the situation?